ROS Packages for Hunter Mobile Base

Packages

• hunter_base: a ROS wrapper around Hunter SDK to monitor and control the robot
• hunter_bringup: launch and configuration files to start ROS nodes
• hunter_msgs: hunter related message definitions

Communication interface setup

Please refer to the README of "ugv_sdk" package for setup of communication interfaces.

Note on CAN interface on Nvidia Jetson Platforms

Nvidia Jeston TX2/Xavier/XavierNX have CAN controller(s) integrated in the main SOC. If you're using a dev kit, you need to add a CAN transceiver for proper CAN communication.

Basic usage of the ROS package

1. Install dependent packages

   $ sudo apt install -y ros-$ROS_DISTRO-teleop-twist-keyboard

2. Clone the packages into your catkin workspace and compile

   (the following instructions assume your catkin workspace is at: ~/catkin_ws/src)

   $ cd ~/catkin_ws/src
   $ git clone https://github.com/agilexrobotics/ugv_sdk.git
   $ git clone https://github.com/agilexrobotics/hunter_ros.git
   $ cd ..
   $ catkin_make

3. Setup CAN-To-USB adapter

• Enable gs_usb kernel module(If you have already added this module, you do not need to add it)

  $ sudo modprobe gs_usb

• first time use hunter-ros package

  $ rosrun hunter_bringup setup_can2usb.bash

• if not the first time use hunter-ros package(Run this command every time you turn off the power)

  $ rosrun hunter_bringup bringup_can2usb.bash

• Testing command

  # receiving data from can0
  $ candump can0

4. Launch ROS nodes

• Start the base node for the real robot

  $ roslaunch hunter_bringup hunter_robot_base.launch

• Start the keyboard node to control the real robot

  $ roslaunch hunter_bringup hunter_teleop_keyboard.launch

SAFETY PRECAUSION:

Always have your remote controller ready to take over the control whenever necessary.